Radiometrically characterised ultraviolet light-emitting diode (UVLED) based micro-photoreactors for rapid, safe and portable screening of organic peroxide explosives

We present a novel screening mechanism of OPEs from household products using in-house developed and radiometrically characterised UVLED based portable micro-photoreactors as well as stabilising reagent to stabilise the photodegradation of OPEs. This study affords selective and ultra-trace level of screening of HMTD (0.12 μM, n = 3, RSD 6 %), MEKP (0.08 μM, n = 3, RSD 6 %) and TATP (0.16 μM, n = 3, RSD 7 %) from H₂O₂, highlighting its potential for real-world explosive screening applications in security heightened settings in a rapid, safe, and effective manner.